Angelina Chen
Email: angelinakejing@outlook.com
ORCID: 0000-0002-4925-2837
Ruibo (Ryan) Feng
Email: rynfenng@gmail.com
ORCID: 0000-0002-2683-0921
Georgia Shanks
Email: georgiashanks19@gmail.com
ORCID: 0000-0002-3227-7851
2022-09-14
Group 6
Our dataset
Target: River water quality trends
Location: Throughout New Zealand
Time: 1990-2017, 1998-2017 and 2008-2017
Indicators: total nitrogen, total phosphorus, water clarity, turbidity, E.Coli, dominant landcover, trend
Retrieved from: Ministry for the Environment’s database
Our motivation: We are passionate about environmental conservation. Important to perform analyses to determine what NZ needs to focus on to improve the health of our rivers.
Visualisations of our data
Overall trends in river health over dominant land types of NZ rivers
Visualisations of our data
Trends in NZ river health indicators
Interesting findings
Histogram of turbidity (blue) vs. nitrogen (yellow)
Interesting findings
Pairs plot for nitrogen and turbidity in 2008
Future steps
Inspired by a previous report revealing a potential correlation between nitrogen and water quality, we are interested to see if turbidity can be one of the main indicators and provide statistical significance to this hypothesis.
Investigate trends in river water quality in different locations across New Zealand - How does spatial variation affect river water quality?
Joy, M. (2019) How we failed to protect freshwater in New Zealand;will the new government initiatives make adifference?